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First insights into the molecular programs orchestrating the progression from neural stem cells to cortical projection neurons are emerging. Loss of the transcriptional regulator Ski has been linked to the human 1p36 deletion syndrome, which includes central nervous system defects. Here, we report critical roles for Ski in the maintenance of the neural stem(More)
The mammalian target of rapamycin (mTOR) regulates cell growth in response to various intracellular and extracellular signals. It assembles into two multiprotein complexes: the rapamycin-sensitive mTOR complex 1 (mTORC1) and the rapamycin-insensitive mTORC2. In this study, we inactivated mTORC1 in mice by deleting the gene encoding raptor in the progenitors(More)
Peripheral myelin formation depends on axonal signals that tightly control proliferation and differentiation of the associated Schwann cells. Here we demonstrate that the molecular program controlling proliferation of Schwann cells switches at birth. We have analyzed the requirements for three members of the cyclin-dependent kinase (cdk) family in Schwann(More)
Like many POU domain proteins, Oct-6 plays important roles during vertebrate development. In accord with its function as a transcriptional regulator during neurogenesis and myelination, Oct-6 is predominantly found in the nucleus. Nuclear import is mediated by a nuclear localization signal at the N-terminal end of the POU homeodomain. Here we show, that(More)
Despite the vast abundance of glial progenitor cells in the mouse brain parenchyma, little is known about the molecular mechanisms driving their proliferation in the adult. Here we unravel a critical role of the G1 cell cycle regulator cyclin D1 in controlling cell division of glial cells in the cortical grey matter. We detect cyclin D1 expression in(More)
In the developing forebrain, neural stem and progenitor cells generate a large variety of neurons with specific functions in the mature cortex. A central issue is to understand the roles of transcriptional networks and regulatory pathways that control these complex developmental processes. The proto-oncogene Ski is a transcriptional regulator linked to the(More)
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